History
Taken from Final Report on the Battlefield of Gettysburg (New York at Gettysburg)
by the New York Monuments Commission for the Battlefields of Gettysburg and Chattanooga.
Albany, NY: J.B. Lyon Company, 1902.

BY COL. NOBLE D. PRESTON

COMRADES:
This regiment was organized with two battalions, at Elmira, N. Y., from September
to December, 1861. It was called the " Porter Guards," in honor of
Col. Peter B. Porter, of Niagara Falls.

The opposition to the use of cavalry in prosecuting the war, which was manifested
about this time, caused the disbanding of the Morgan Cavalry, at the Elmira
rendezvous, and the few men who had enrolled their names for that regiment enlisted
in the Porter Guards. It was designated as the Tenth New York Cavalry on the
I2th of December, 1861. The following constituted the field and staff:

The regiment, numbering 30 officers and 735 enlisted men, left the Elmira
depot for Gettysburg, Pa., Christmas eve, 1861. It arrived there the next night
and was encamped in the halls, schoolhouses, etc., until barracks were erected,
when it moved into them. The men were instructed in the use of the sabre and
dismounted movements of a regiment, on ground near which they met the enemy,
eighteen months later.

The regiment left Gettysburg for Perryviiie, Md., on the 7th of March, 1862,
where it arrived the next day. On the 26th of the same month headquarters were
transferred to Havre de Grace, on the opposite side of the Susquehanna River.
The regiment was assigned to the guarding of the P. W. & B. R. R., and thence
to Baltimore.

On the 4th of April, Company A guarding the bridge over Back River, near Baltimore,
made an important capture of a schooner laden with recruits and material for
the Southern Confederacy. Regimental headquarters were transferred to Patterson
Park, Baltimore, on the 25th of June, where the regiment was quartered, except
Companies A, C, and G, which remained to guard the important bridges on the
line of the P. W. & B. R. R.

Horses and equipments were issued to the regiment while here, and on the 15th
of August it marched to Washington and encamped near Bladensburg, where it received
its full complement of horses and arms. From this point a detail was sent to
New York State to recruit a third battalion. Companies I, K, and L, of the new
battalion, joined the old organization in the field at Brooke's Station, Va.,
December 5, 1862, and Company M joined at Camp Bayard, near Belle Plain, Va.,
about a month later.

The regiment had served in Brig. Gen. George D. Bayard's brigade up to the
time of the death of that gallant officer at the battle of Fredericksburg, December
13, 1862.

On the organization of the Cavalry Corps of the Army of the Potomac, in the
spring of 1863, the Tenth was brigaded with the First Maine and Second New York
(Harris Light) cavalry regiments, commanded by Col. Judson Kilpatrick, of the
latter regiment, the division — the Third — being commanded by Brig.
Gen. D. McM. Gregg. This brigade achieved a reputation for dash and gallantry
which it maintained while the organization continued.

During the winter of 1862-63 and early spring of 1863, the regiment participated
in picketing and scouting in the " Northern Neck " Peninsula, King
George County, Va., until the opening of the spring campaign of 1863. It accompanied
the Cavalry Corps under Stoneman on the raid to the rear of "the Confederate
army during the Chancellorsville battle, and did valiant service in that arduous
but futile expedition.

In the first great cavalry engagement of the war, Brandy Station, Va., June
9, 1863, the Tenth bore a conspicuous part and suffered severe losses, losing
among its commissioned officers Lieutenant Colonel Irvine, taken prisoner. Its
gallantry was recognized and mentioned in orders. The loss in the regiment in
this conflict in killed, wounded, and prisoners, was 100.

After this brilliant passage at arms, the Cavalry Corps was reorganized. The
Tenth became a part of the Third Brigade of the Second Cavalry Division, with
Brig. Gen. D. McM. Gregg retained as division commander. Col. J. Irvin Gregg,
of the Sixteenth Pennsylvania Cavalry, was made brigade commander.

Then followed the Gettysburg campaign, with the cavalry engagements at Aldie,
Middleburg, and Upperville, Va., while moving northward, which gave additional
lustre to our cavalry arms. In each of these the Tenth bore a prominent part,
suffering a severe loss at Middleburg.

Gettysburg was reached and position taken by the regiment on the right flank
at 2 p. m., July 2, 1863. It was the first cavalry regiment to meet the enemy
on the right flank, and it was almost constantly engaged in part or whole, until
the Confederates fell back. Gregg's Brigade, of which the Tenth formed a part,
was held in reserve, during the battle of the 3d of July, but lost several men,
wounded, nevertheless. Its loss during the two days in killed, wounded, and
prisoners, was 17.

On the 4th of July the regiment passed through the streets made familiar by
its stay in the village in the winter of 1861-62, and out on the Chambersburg
Road in pursuit of the Confederates. On the I4th of July, Gregg's Division crossed
the Potomac River at Harper's Ferry, the first troops from the Army of the Potomac
to again tread Virginia soil. On the 16th of the same month it was attacked
by a superior force at Shepherdstown, Va., and the battle continued late into
the night, when Gregg adroitly withdrew from his delicate position. The Tenth
bore the first shock of the battle and covered the retreat, besides doing excellent
service during the battle.

The next serious meeting with the enemy was at Sulphur Springs, October 12,
1863, when Gregg attempted to dispute the passage of the Rappahannock at that
place by the Confederate army. It was a bold move and a vigorous effort, but
the Confederates greatly outnumbered him. The Tenth, which had been sent across
to the south side of the river early in the day, developed the advance of Lee's
army, and lost heavily in the engagement and retreat which followed. Two days
later, the I4th, the same troops were encountered at Auburn, Va., where a brisk,
early morning engagement took place, the Tenth again meeting with considerable
loss. And again, on the evening of the same day at Bristoe Station, it skirmished
with them. When the Confederate army fell back the Tenth was in close pursuit
back to the Rappahannock River.

In an encounter at Grove Church, Va., a detachment from the regiment had a
skirmish and lost a number of men taken prisoners. In the Mine Run campaign,
November and December, 1863, the regiment saw active and severe service. Winter
was passed by the Tenth in comfortable quarters at Turkey Run, near Warrenton,
Va. While here three-quarters of the men re-enlisted and returned to New York
State on furlough.

Some skirmishing and scouting before the spring campaign resulted in slight
losses. In the reorganization of the army in the spring of 1864, the Second
Cavalry Division retained its brigade and division commanders. Under the new
corps commander, Gen. P. H. Sheridan, vigorous work was in stare for the cavalry.
The Tenth bore well its part in all the hard-fought battles which followed,
opening with several days in the Wilderness, or Todd's Tavern; the raid to Richmond
extending from the 9th to the 25th of May, a march replete with desperate fighting
and exhaustive marches. Anderson's Ford, Ground Squirrel Bridge Fortifications
of Richmond, etc., were included.

On returning to the army, Gregg's Division was sent to Hawes' Shop, on the
28th of May, where it met the entire Confederate Cavalry Corps, in one of the
most stubbornly-contested cavalry engagements of the war. Here the Tenth, fighting
dismounted, did valiant service, sustaining a greater loss in killed, wounded,
and prisoners than any other regiment in the division. The victory was with
Gregg after an all day's contest. Cold Harbor followed, with but slight loss
in the regiment, on the 1st of June. Picket and skirmishing continued until
the 6th of June, when the Cavalry Corps started out on the " Trevilian
Raid." The march to and from Trevilian Station was one continuous skirmish.

The battle of Trevilian Station, June nth and 12th, gave the regiment an opportunity
to again display its fighting qualities, and it acquitted itself most creditably.
Its loss was severe for the short space of time actually engaged. On the return
to White House, Va., brisk skirmishing ensued on the 20th of June, in which
several men were wounded in the Tenth.

While guarding the wagon trains of the army from White House to James River,
Gregg's Division was viciously assailed at St. Mary's Church, June 24th, and
the division was thrown into considerable confusion, the Confederates hoping
by their largely superior force to destroy it before assistance Could be brought
up. They were foiled in the attempt, however, though the fighting was desperate
and the losses heavy. Although the Tenth had become greatly reduced in numbers
prior to the battle, its loss was 22 officers and enlisted men. After crossing
the James River the Tenth encamped near Fort Powhatan, remaining in that vicinity,
doing picket and scouting duty until the latter part of July, when it was engaged
in a severe skirmish at Lee's Mills, Va., where it lost several men.

Then followed minor contests, Deep Bottom, Va., August 14th; Reams' Station,
Va., August 23d; Poplar Springs Church, October 1st and 2d, where the loss was
considerable and the fighting determined; Boydton Plank Road, October 27th and
28th; Prince George Court House, October 30th; Blackwater Creek, November 18th;
a hard-fought battle at Stony Creek, December 1st and 2d; Three Creeks, December
9th, and Jarrett's Station, December 10, 1864. Dinwiddie Court House, February
5th, was followed by Hatcher's Run the next day, where Lieutenant Colonel Tremain,
of the Tenth, was mortally wounded.

The second Dinwiddie Court House fight was a severe one, the regiment losing
17 men out of about 100; Five Forks, April 1st, and then Sailor's Creek, where
so much glory and enthusiasm prevailed that the men seemed to forget the great
physical strain they were under and the hard fighting they were doing; Farmville,
April 7th, and the closing of the great struggle at Appomattox Court House,
April 9th. The return march to Petersburg followed, where the regiment remained
in camp a short time before proceeding to Washington overland. The brigade was
commanded by Brevet Brig. Gen. M. H. Avery, colonel of the Tenth New York Cavalry.
The regiment participated in the Grand Review at Washington on the 23d of May.

By an order of the War Department, dated June 17, 1865, the Tenth and Twenty-fourth
New York Cavalry Regiments were consolidated, and the new organization designated
the First New York Provisional Cavalry, with M. H. Avery as colonel. This regiment
was mustered out of the service at Syracuse, N. Y., August 3 and 4, 1865. The
losses in the Tenth New York Cavalry during its entire term of service were
as follows:
Killed in action: 5 officers; 54 enlisted men; 59 total
Wounded: 23 officers; 228 enlisted men; 251 total
Captured: 13 officers; 214 enlisted men; 227 total

Its record of engagements participated in, cover every battle in which the
Army of the Potomac fought, from the time the regiment crossed the Potomac River
into Virginia to the close of the war, besides many purely cavalry engagements
and skirmishes.

The number of officers commissioned and mustered in from first to last numbered
154, and the number of men enrolled was 2,101. Of this number, however, quite
a large number were enlistments and conscripts near the close of the war. During
the active campaigns of 1863 and 1864, its number, for duty, was frequently
reduced to from 75 to 250 men. Its record for excellent service is second to
no organization sent out by the great Empire State, to aid in suppressing the
Rebellion.